| NWS Forecast for: Mellette County Issued by: National Weather Service Rapid City, SD Last Update: 437 PM CDT Sat Oct 10 2026 | |
| Late This Afternoon: Sunny. Highs in the lower 90s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Tonight: Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 50s. Southwest winds 10 to 15 mph. Gusts up to 30 mph in the evening. Sunday: Partly cloudy. Cooler with highs in the lower 70s. Northwest winds 10 to 15 mph. Sunday Night: Mostly cloudy. A slight chance of showers after midnight. Lows in the upper 40s. North winds 10 to 15 mph. Chance of rain 20 percent. Columbus Day: Mostly cloudy with a slight chance of showers in the morning, then partly cloudy in the afternoon. Highs in the lower 60s. North winds 5 to 10 mph. Gusts up to 20 mph in the afternoon. Chance of rain 20 percent. Monday Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 40s. North winds 10 to 15 mph with gusts up to 25 mph. Tuesday: Partly cloudy. Highs around 60. Tuesday Night: Partly cloudy. A slight chance of rain after midnight. Lows in the lower 40s. Chance of rain 20 percent. Wednesday: Partly cloudy with a 50 percent chance of rain. Highs in the upper 50s. Wednesday Night: Rain likely. Lows in the mid 40s. Chance of rain 70 percent. Thursday: Becoming partly cloudy. A 50 percent chance of rain. Breezy with highs around 60. Thursday Night: Partly cloudy. A chance of rain in the evening. Breezy with lows in the lower 40s. Chance of rain 30 percent. Friday: Partly cloudy and breezy. Highs in the upper 50s. Friday Night: Partly cloudy in the evening, then clearing. Lows in the upper 30s. Saturday: Sunny. Highs in the mid 60s. | |
| Zone Forecast: Mellette County | |
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